Can I give black cohosh to a 10 year old for up set stomach and throwing up?

I saw on Valerie Saxion that she uses it for up set stomach and she gives it to her kids. My mother said they gave it to her at the emergency room in liquid form. I have capsules and wanted to know if I could give half to my daughter. No health insurance.

Added 28 Jul 2010:

So So Sorry guys, I was wrong, I had black cohosh mixed up with black activated charcoal. Thank God I did not give it to her! Ginger root tea instead. She is up and about now!